Harradine (1987) describes various proofs received in Manila.
Details of the supporting documentation to the notes are believed to be lost but were oringally provided to Peter Harradine by Warren Browne. Harradine reports that some examples are represented in the Tapling Collection; however, this fact appears to be erroneous.
January 1890
2c - 5 proof sheets, in dark red
5c dark blue - 5 proof sheets
10c - 5 proof sheets, in dark green
20c - 5 proof sheets, in crimson
3 sheets of each value were perforated and 2 were imperforated. The sheets were reportedly ungummed, but were subsequently gummes by a Sr Enrique Brias. No proofs were received for the 2 4/8c, 8c, 12 4/8c and 25c issues.
April 1891
10c - 5 proof sheets, in violet
25c - 5 proof sheets, in olive
No proofs were received for the 20c issue.
February 1892
1c - 5 proof sheets, in black
2 4/8c - 5 proof sheets, in blue
5c - 5 proof sheets in lilac
8c - 5 proof sheets in emerald green
12 4/8c - 4 proof sheets, in dark green
15c - 5 proof sheets, in myrtle-green
No proofs were received for the 2c, 6c 10c and 20 issues. However 50 sheets of imperforate stamps for sample purposes 2c violet, 8c ultramarine 20c dark brown.
June 1894
2c 5 proof sheets, in grey-green
8c - 5 proof sheets in intense rose
15c - 5 proof sheets in grey-black
No proofs were received for the 6c and 20 issues.
Later in 1894 other proof sheets were received but were destroyed by fire and no longer exist (2 4/8c black, 12 4/8c cardinal red, 15c bright green and 25c intense borwn-red.
March 1896
2c 50 sample sheets, in pale brown
5c - 10 sample sheets in blue-green
8c - 5 sample sheets in deep red
10c - 5 sample sheets in magenta
15c 5 sample sheets in ochre
No proofs were received for the 1c and 20 issues.
Also reported are several hundred sample sheets in varying values and rather gorgeous hues which included 2c in grey brown and 5c blue green (both imperforate and ungumed.
Note Harradine variously refers to these as proof sets and sample sheets